Acquisition of IT Logistics Inc (Details) (USD $)	9 Months Ended			12 Months Ended						9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012 Senior Redeemable Preferred Stock [Member]	Sep. 30, 2012 Public Preferred Stock [Member]	Dec. 31, 2011 Public Preferred Stock [Member]	Dec. 31, 1991 Public Preferred Stock [Member]	Dec. 31, 1990 Public Preferred Stock [Member]	Jun. 30, 2011 IT Logistics, Inc [Member]	Nov. 01, 2012 IT Logistics, Inc [Member] Subordinated Promissory Note [Member]	Jun. 30, 2011 IT Logistics, Inc [Member] Subordinated Promissory Note [Member]	Sep. 30, 2012 IT Logistics, Inc [Member] Liability Due in Installments [Member]	Jun. 30, 2011 IT Logistics, Inc [Member] Liability Due in Installments [Member]
Business Acquisition [Line Items]
Number of installments											10
Monthly installments due										$ 700,000
Face value of debt instrument									15,000,000		7,000,000
Interest rate of notes (in hundredths)								6.00%			0.50%
Preferred stock dividend rate per annum (in hundredths)		14.125%	12.00%	12.00%	6.00%	6.00%
Initial cash consideration drawn from Facility							8,000,000
Goodwill amortization period - tax purposes	15 years
Allocation of purchase price [Abstract]
Inventories, net							221,000
Property and equipment, net							108,000
Goodwill							14,916,000
Other intangible assets							11,286,000
Total purchase price allocation							26,531,000
Purchase price allocation to net tangible assets							$ 300,000
Acquired intangible assets amortization period	5 years